1
22
23 package com.liferay.util;
24
25 import com.liferay.portal.kernel.util.StringUtil;
26
27 import java.util.ArrayList;
28 import java.util.Iterator;
29 import java.util.LinkedHashMap;
30 import java.util.List;
31 import java.util.Map;
32
33
38 public class ContextReplace implements Cloneable {
39
40 public ContextReplace() {
41 this(null);
42 }
43
44 public ContextReplace(Map<String, String> context) {
45 if (context != null) {
46 _context.putAll(context);
47
48 _updateArrays();
49 }
50 }
51
52 public void addValue(String key, String value) {
53 if ((key != null) && (value != null)) {
54 _context.put(key, value);
55
56 _updateArrays();
57 }
58 }
59
60 public String replace(String text) {
61 if (text == null) {
62 return null;
63 }
64
65 if (_keys.length == 0) {
66 return text;
67 }
68
69 return StringUtil.replace(text, _keys, _values);
70 }
71
72 public Object clone() {
73 return new ContextReplace(_context);
74 }
75
76 private void _updateArrays() {
77 List<String> keys = new ArrayList<String>();
78 List<String> values = new ArrayList<String>();
79
80 Iterator<Map.Entry<String, String>> itr =
81 _context.entrySet().iterator();
82
83 while (itr.hasNext()) {
84 Map.Entry<String, String> entry = itr.next();
85
86 String entryKey = entry.getKey();
87 String entryValue = entry.getValue();
88
89 keys.add("${" + entryKey + "}");
90 values.add(entryValue);
91 }
92
93 _keys = keys.toArray(new String[keys.size()]);
94 _values = values.toArray(new String[values.size()]);
95 }
96
97 private Map<String, String> _context = new LinkedHashMap<String, String>();
98 private String[] _keys = new String[0];
99 private String[] _values = new String[0];
100
101 }